U.S. patent number 9,505,356 [Application Number 14/750,478] was granted by the patent office on 2016-11-29 for vehicular interior part.
This patent grant is currently assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA. The grantee listed for this patent is TOYOTA BOSHOKU KABUSHIKI KAISHA. Invention is credited to Yohei Migaki.
United States Patent |
9,505,356 |
Migaki |
November 29, 2016 |
Vehicular interior part
Abstract
A vehicular interior part includes an interior part and a trim
main body where the interior part is mounted. The interior part
includes an interior part main wall portion and a mount projection
projecting from a rear surface of the interior part main wall
portion. The trim main body includes a main body side wall portion
and an extended portion extending from the main body side wall
portion toward a middle portion of the trim main body. The extended
portion includes an insertion through hole in which the mount
projection is and a clearance portion adjacent to the insertion
through hole and with which the extended portion is movable toward
the middle portion of the trim main body relative to the mount
projection that is in the insertion through hole in response that
the main body side wall portion receives a load in a vehicular
interior-exterior direction.
Inventors: |
Migaki; Yohei (Toyota,
JP) |
Applicant: |
Name |
City |
State |
Country |
Type |
TOYOTA BOSHOKU KABUSHIKI KAISHA |
Aichi-ken |
N/A |
JP |
|
|
Assignee: |
TOYOTA BOSHOKU KABUSHIKI KAISHA
(Aichi-ken, JP)
|
Family
ID: |
55016446 |
Appl.
No.: |
14/750,478 |
Filed: |
June 25, 2015 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20160001714 A1 |
Jan 7, 2016 |
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Foreign Application Priority Data
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Jul 2, 2014 [JP] |
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2014-136602 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60R
13/0243 (20130101); B60R 13/0237 (20130101); B60R
13/0206 (20130101); B60R 21/0428 (20130101); B60R
13/02 (20130101) |
Current International
Class: |
B60R
13/02 (20060101); B60R 21/04 (20060101) |
Field of
Search: |
;296/1.08,39.1,146.7,152,153 |
Foreign Patent Documents
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06270676 |
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Sep 1994 |
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JP |
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2000-103230 |
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Apr 2000 |
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JP |
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2010264835 |
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Nov 2010 |
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JP |
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Other References
English translation of JP 2010-264835; retreived May 13, 2016 from
the Japan Platform for Patent Information located at
https://www.j-platpat.inpit.go.jp/web/all/top/BTmTopEnglishPage.
cited by examiner .
English translation of JP 06-270676; retreived May 13, 2016 from
the Japan Platform for Patent Information located at
https://www.j-platpat.inpit.go.jp/web/all/top/BTmTopEnglishPage.
cited by examiner.
|
Primary Examiner: Daniels; Jason S
Attorney, Agent or Firm: Greenblum & Bernstein,
P.L.C.
Claims
The invention claimed is:
1. A vehicular interior part comprising: a main wall portion having
a main surface facing a vehicular interior side and having an outer
peripheral edge and a middle portion; a side wall portion extending
from the outer peripheral edge toward a vehicular exterior side; an
interior part including: an interior part main wall portion that is
a part of the main wall portion and having a rear surface that is
opposite to the main surface; and a mount projection projecting
from the rear surface; and a trim main body mounted on the interior
part and on a vehicular exterior side with respect to the interior
part, the trim main body including: a main body side wall portion
that is a part of the side wall portion; and an extended portion
extending from the main body side wall portion toward the middle
portion of the main wall portion along the rear surface of the
interior part main wall portion, the extended portion including an
insertion through hole and a clearance portion, the insertion
through hole in which the mount projection is, and the clearance
portion being adjacent to the insertion through hole and with which
the extended portion is movable toward the middle portion of the
main wall portion relative to the mount projection that is in the
insertion through hole in response that the main body side wall
portion receives a load in a vehicular interior-exterior
direction.
2. The vehicular interior part according to claim 1, wherein the
clearance portion is a through hole and the clearance portion and
the insertion through hole are communicated with each other to form
an elongated through hole, and the elongated through hole is
elongated toward the outer peripheral edge of the main wall
portion.
3. The vehicular interior part according to claim 2, wherein the
elongated through hole includes the insertion through hole on a
middle portion side of the main wall portion with respect to the
clearance portion, and the insertion through hole has a hole edge
and the mount projection is held against the hole edge.
4. The vehicular interior part according to claim 1, wherein the
clearance portion is a through hole that is through the extended
portion and communicated with the insertion through hole.
5. The vehicular interior part according to claim 4, wherein the
clearance portion is on an outer peripheral edge side of the main
wall portion with respect to the insertion through hole.
6. The vehicular interior part according to claim 5, wherein the
insertion through hole has a hole edge and the mount projection is
held against the hole edge.
7. The vehicular interior part according to claim 4, wherein the
extended portion includes an extended basal portion that is
continuous from the main body side wall portion and from which the
extended portion extends, and the extended portion includes the
clearance portion on an extended basal portion side with respect to
the insertion through hole.
8. The vehicular interior part according to claim 4, wherein the
main body side wall portion has an exterior edge portion on the
vehicular exterior side with respect to the extended portion and
the exterior edge portion is in contact with an inner panel.
9. The vehicular interior part according to claim 4, wherein the
insertion through hole has an opening size that fits the mount
projection.
10. The vehicular interior part according to claim 4, wherein the
extended portion is on the vehicular exterior side with respect to
the interior part main wall portion and overlaps the interior part
main wall portion, and the mount projection is in the insertion
through hole.
11. The vehicular interior part according to claim 4, wherein the
extended portion extends toward a vehicular front side from the
main body side wall portion that is on a vehicular rear side.
12. A vehicular interior part comprising: a main wall portion
having a main surface facing a vehicular interior side and having
an outer peripheral edge and a middle portion; a side wall portion
extending from the outer peripheral edge toward a vehicular
exterior side; an interior part including: an interior part main
wall portion that is a part of the main wall portion and having a
rear surface that is opposite to the main surface; and a mount
projection projecting from the rear surface; and a trim main body
mounted on the interior part and on a vehicular exterior side with
respect to the interior part, the trim main body including: a main
body side wall portion that is a part of the side wall portion; and
an extended portion extending from the main body side wall portion
toward the middle portion of the main wall portion along the rear
surface of the interior part main wall portion, the extended
portion including an insertion through hole and a clearance
portion, the insertion through hole in which the mount projection
is, and the clearance portion being adjacent to the insertion
through hole and with which the extended portion is movable toward
the middle portion of the main wall portion relative to the mount
projection that is in the insertion through hole in response that
the main body side wall portion receives a load in a vehicular
interior-exterior direction, wherein the clearance portion is a
through hole that is through the extended portion and communicated
with the insertion through hole the extended portion includes an
extended basal portion that is continuous from the main body side
wall portion and from which the extended portion extends, the
extended portion includes the clearance portion on an extended
basal portion side with respect to the insertion through hole, the
interior part further includes an interior part side wall portion
that is a part of the side wall portion and the interior part side
wall portion and the main body side wall portion constitute the
side wall portion, the interior part side wall portion has a side
edge portion having an edge surface that faces the vehicular
exterior side, and the extended basal portion has a contact surface
facing the vehicular interior side and the edge surface of the
interior part side wall portion is in contact with the contact
surface of the extended basal portion.
13. A vehicular interior part comprising: a main wall portion
having a main surface facing a vehicular interior side and having
an outer peripheral edge and a middle portion; a side wall portion
extending from the outer peripheral edge toward a vehicular
exterior side; an interior part including: an interior part main
wall portion that is a part of the main wall portion and having a
rear surface that is opposite to the main surface; and a mount
projection projecting from the rear surface; and a trim main body
mounted on the interior part and on a vehicular exterior side with
respect to the interior part, the trim main body including: a main
body side wall portion that is a part of the side wall portion; and
an extended portion extending from the main body side wall portion
toward the middle portion of the main wall portion along the rear
surface of the interior part main wall portion, the extended
portion including an insertion through hole and a clearance
portion, the insertion through hole in which the mount projection
is, and the clearance portion being adjacent to the insertion
through hole and with which the extended portion is movable toward
the middle portion of the main wall portion relative to the mount
projection that is in the insertion through hole in response that
the main body side wall portion receives a load in a vehicular
interior-exterior direction, wherein the clearance portion is a
through hole that is through the extended portion and communicated
with the insertion through hole, the extended portion has an
extended distal end, and the insertion through hole is on an
extended distal end side with respect to the clearance portion.
14. A vehicular interior part comprising: a main wall portion
having a main surface facing a vehicular interior side and having
an outer peripheral edge and a middle portion; a side wall portion
extending from the outer peripheral edge toward a vehicular
exterior side; an interior part including: an interior part main
wall portion that is a part of the main wall portion and having a
rear surface that is opposite to the main surface; and a mount
projection projecting from the rear surface; and a trim main body
mounted on the interior part and on a vehicular exterior side with
respect to the interior part, the trim main body including: a main
body side wall portion that is a part of the side wall portion; and
an extended portion extending from the main body side wall portion
toward the middle portion of the main wall portion along the rear
surface of the interior part main wall portion, the extended
portion including an insertion through hole and a clearance
portion, the insertion through hole in which the mount projection
is, and the clearance portion being adjacent to the insertion
through hole and with which the extended portion is movable toward
the middle portion of the main wall portion relative to the mount
projection that is in the insertion through hole in response that
the main body side wall portion receives a load in a vehicular
interior-exterior direction, wherein the clearance portion is a
through hole and the clearance portion and the insertion through
hole are communicated with each other to form an elongated through
hole, and the elongated through hole is elongated toward the outer
peripheral edge of the main wall portion, the extended portion has
an extended distal end, and the insertion through hole is on an
extended distal end side with respect to the clearance portion in
the elongated through hole.
Description
CROSS REFERENCE TO RELATED APPLICATION
This application claims priority from Japanese Patent Application
No. 2014-136602 filed Jul. 2, 2014. The entire contents of the
priority application are incorporated herein by reference.
FIELD OF THE INVENTION
The present disclosure relates to a vehicular interior part.
BACKGROUND
There has been a door trim (a vehicular interior part) including an
armrest. The armrest has a rear edge surface including a cutaway
groove so that the armrest is easily broken in a collision. If the
armrest receives shock in a side collision, a thin portion of the
armrest is broken along the cutaway groove and the rear edge
surface of the armrest having a box shape is opened widely to have
a substantially L-shaped opening. Accordingly, the armrest is
easily broken and effectively absorbs the shock.
However, in such a configuration, the rear edge surface of the
armrest that is a side wall of the door trim has rigidity that is
lower than rigidity of a side wall without having the groove.
Therefore, the rigidity of the door trim during a normal usage may
be lowered.
In the above configuration, the groove is formed on a surface that
is opposite from a design surface of the side wall of the door
trim. Therefore, unevenness in gloss may occur on the design
surface of the side wall and this may deteriorate the design.
SUMMARY OF THE INVENTION
An objective of the present technology is to provide a vehicular
interior part that maintains rigidity during a normal usage and
design and also improves shock absorbing properties in a side
collision.
According to the present technology, a vehicular interior part
includes a main wall portion having a main surface facing a
vehicular interior side and having an outer peripheral edge and a
middle portion, a side wall portion extending from the outer
peripheral edge toward a vehicular exterior side, an interior part,
and a trim main body. The interior part includes an interior part
main wall portion that is a part of the main wall portion and
having a rear surface that is opposite to the main surface, and a
mount projection projecting from the rear surface. The trim main
body is mounted on the interior part and on a vehicular exterior
side with respect to the interior part, and the trim main body
includes a main body side wall portion that is a part of the side
wall portion, and an extended portion extending from the main body
side wall portion toward the middle portion of the main wall
portion along the rear surface of the interior part main wall
portion. The extended portion includes an insertion through hole
and a clearance portion. The mount projection is in the insertion
through hole and the clearance portion is adjacent to the insertion
through hole and with the clearance portion, the extended portion
is movable toward the middle portion of the main wall portion
relative to the mount projection that is in the insertion through
hole in response that the main body side wall portion receives a
load in a vehicular interior-exterior direction.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a door trim according to a first
embodiment.
FIG. 2 is a cross-sectional view of a part of the door trim
including an upper board and a main board in FIG. 1 (taken along
line II-II in FIG. 1).
FIG. 3 is a cross-sectional view of a part the door trim wherein
the upper board and the main board in FIG. 2 are deformed in a side
collision.
FIG. 4 is a rear plan view of a part of the door trim including an
extended portion and a clearance portion.
FIG. 5 is a rear plan view of a part of a door trim including an
extended portion and a clearance portion according to a second
embodiment.
DETAILED DESCRIPTION
First Embodiment
A first embodiment of the present technology will be described with
reference to FIGS. 1 to 4. According to this embodiment, a door
trim 20 that is an example of a vehicular interior part mounted in
a vehicle will be described. in FIG. 1, a left side corresponds to
a vehicular front side and a right side corresponds to a vehicular
rear side.
The door trim 20 is mounted on a vehicular interior side of a
vehicular panel including an inner panel 12 (see FIG. 2) and an
outer panel (not illustrated), and the door trim 20 and the
vehicular panel constitute a vehicular door. The vehicular door is
arranged on a side of a seat where an occupant seats and used as a
vehicular side door.
The door trim 20 mainly includes a trim board 21 that has a
plate-like shape. The trim board 21 is made of synthetic resin
material such as polypropylene. The material of the trim board 21
is not necessarily limited to the synthetic resin but may be a
mixture of wood-based material and synthetic resin.
As illustrated in FIG. 1, the trim board 21 includes a main wall
portion 22 and a side wall portion 23. The main wall portion 22 has
a main surface 22A facing the vehicular interior side. The side
wall portion 23 extends from an outer peripheral edge 22C of the
main wall portion 22 toward a vehicular exterior side.
Specifically, the trim board 21 includes the main wall portion 22
and the side wall portion 23. The main wall portion 22 has a
rectangular shape having a substantially same size as the inner
panel 12 and the side wall portion 23 extends toward the vehicular
exterior side from a vehicular front edge, a vehicular lower edge,
and a vehicular rear edge of the main wall portion 22,
respectively. The trim board 21 has a shallow box shape that is
open toward the inner panel 12. The trim board 21 includes the main
wall portion 22 as a bottom surface of the shallow box shape and
the side wall portion 23 as a side surface thereof. The trim board
21 further includes a flange portion 24 (an exterior edge portion)
that extends from a vehicular exterior side edge of the side wall
portion 23 to form a flanged shape.
The main wall portion 22 is opposite the door panel (the inner
panel 12) as illustrated in FIG. 2. The main wall portion 22
receives a load caused in the side collision. The load is
transferred from the vehicular exterior side to the main wall
portion 22 via the door panel (the inner panel 12). The main wall
portion 22 has the main surface 22A that is a design surface facing
the vehicular interior side (occupants). The main surface 22A is a
surface opposite to a surface of the main wall portion 22 facing
the inner panel 12.
As illustrated in FIG. 2, the side wall portion 23 including the
interior part side wall portion 33 and the main body side wall
portion 43 extends in a vehicular interior-exterior direction. The
interior part side wall portion 33 included in the side wall
portion 23 is continuous from and is integrally formed with the
main wall portion 22. The main body side wall portion 43 included
in the side wall portion 23 is in contact with the inner panel 12
directly or indirectly via the flange portion 24. If the inner
panel 12 is moved into the vehicular interior side and comes in
contact with the side wall portion 23 in the side collision, the
side wall portion 23 functions as a protection wall located between
the main wall portion 22 and the inner panel 12.
As illustrated in FIG. 1, the surface 23A of the side wall portion
23 that faces an exterior side of the main wall portion 22 (the
main surface 22A) is seen by an occupant as a design surface when
the vehicular door is open. The surface 23A is covered or
overlapped with a pillar that is arranged adjacent to the vehicular
door and is less likely to be seen from the vehicular interior side
when the vehicular door is closed.
As illustrated in FIG. 1, the trim board 21 includes an upper board
30 that constitutes an upper portion of the trim board 21 and a
main board 40 that constitutes a most portion below the upper board
30. As illustrated in FIG. 2, the upper board 30 (the interior
part) is mounted on the main board 40 (the trim main body) on the
vehicular interior side with respect to the main board 40.
Specifically, the upper board 30 and the main board 40 have a
mounting portion in vehicular rear portions thereof and the upper
board 30 is mounted on the main board 40 on the vehicular interior
side with respect to the main board 40. A lower middle part of the
upper board 30 is arranged on the vehicular exterior side with
respect to the main board 40. The main board 40 and a decoration
part 18 are mounted on the lower middle part of the upper board 30
on the vehicular interior side with respect to the upper board
30.
As illustrated in FIG. 2, a skin 35 may be provided on a surface of
the upper board 30. Examples of the skin may include leather such
as natural leather and synthetic leather, or include a cloth such
as woven fabric, a knitted fabric, and a non-woven cloth. With such
a configuration, the door trim 20 has an improved design.
As illustrated in FIG. 2, the upper board 30 includes an interior
part main wall portion 32 that is a part of the main wall portion
22 and an interior part side wall portion 33 that is a part of the
side wall portion 23. The interior part side wall portion 33
extends from an outer peripheral edge (a vehicular rear edge) of
the interior part main wall portion 32 toward the vehicular
exterior side. The upper board further includes a mount projection
34 that projects from a rear surface 32B of the interior part main
wall portion 32 (a surface opposite to the main surface 22A). The
upper board 30 is mounted on the main board 40 via the mount
projections 34.
The interior part main wall portion 32 is elongated along the
vehicular front-rear direction and is a vehicular upper part of the
main wall portion 22. As illustrated in FIG. 2, the interior part
side wall portion 33 extends from the interior part main wall
portion 32 toward the vehicular rear side and the vehicular
exterior side with being curved and constitutes a vehicular
interior side upper portion of the side wall portion 23. An edge
portion of the skin 35 extends around a side edge portion 33C of
the interior part side wall portion 33 toward a rear surface of the
interior part side wall portion 33. The interior part side wall
portion 33 keeps the edge portion of the skin 35 provided on the
rear surface of the interior part side wall portion 33 from coming
in contact with the mount projection 34.
As illustrated in FIG. 2, the mount projection 34 has a tubular or
a cylindrical shape and has a mount hole therein where a screw 36
is fastened. The mount projection 34 includes reinforcing ribs 37
that extend from an outer surface of the mount projection 34 in the
vehicular front-rear direction and the upper-lower direction and
form a cross shape. The reinforcing ribs 37 are continuous from the
rear surface 32B of the interior part main wall portion 32. The
mount projection 34 and the reinforcing ribs 37 are formed
integrally with the interior part main wall portion 32. A mounting
configuration where the upper board 30 is mounted on the main board
40 via the mount projection 34 will be described later.
As illustrated in FIG. 1, the main board 40 includes an armrest
27A. A part of the main board 40 projects toward the vehicular
interior side to form the armrest 27A. The armrest 27A is located
in a substantially middle portion of the door trim 20 with respect
to the vehicular up-down direction and extends in the vehicular
front-rear direction. The armrest 27A includes an armrest board
portion 27 at a vehicular rear portion thereof. The armrest board
portion 27 has an upper surface that is used as an armrest for an
occupant. The armrest board portion 27 of the armrest 27A has a
mount through hole 13 in a front portion thereof. A switch base
(not illustrated) is mounted in the mount through hole 13. As
illustrated in FIG. 2, the main board 40 includes an inside handle
14, a speaker grill 15, and door pocket 16.
As illustrated in FIG. 1, the main board 40 includes a main body
main wall portion 42 that is a part of the main wall portion 22, a
main body side wall portion 43 that is a part of the side wall
portion 23, and an extended portion 50. The extended portion 50
extends from the main body side wall portion 43 toward a middle
portion (an inner portion) of the main wall portion 22 (the main
surface 22A). The extended portion 50 extends along the interior
part main wall portion 32 and in the vehicular front-rear
direction.
As illustrated in FIG. 1, the main body main wall portion 42 has a
substantially rectangular shape and constitutes a lower portion of
the main wall portion 22 that is below the interior part main wall
portion 32. The main body side wall portion 43 includes a lower
portion 44 and an upper portion 45 and constitutes most part of the
side wall portion 23. The lower portion 44 extends from an outer
peripheral edge of the main body main wall portion 42 (each of the
vehicular front edge, a vehicular lower edge, and a vehicular rear
edge) toward the vehicular exterior side. The upper portion 45
extends from an upper edge of the lower portion 44 that extends
from the vehicular rear edge, and is located on the vehicular
exterior side with respect to the interior part side wall portion
33.
As illustrated in FIG. 2, the main board 40 includes an extended
basal portion 46 that extends from a vehicular interior side edge
of the upper portion 45 of the main body side wall portion 43
toward the inner portion (the middle portion) of the main wall
portion 22. The extended basal portion 46 extends from a rear
surface 43B of the main body side wall portion 43. The extended
basal portion 46 extends along the upper portion 45 in
substantially an up-down direction to form a belt-like shape and
has a vehicular interior side plate surface (a main surface of the
belt-like shape) 46A. The side edge portion 33C of the interior
part side wall portion 33 is arranged on the vehicular interior
side plate surface 46A of the extended basal portion 46. An end
surface of the side edge portion 33C is in contact with the
vehicular interior side plate surface 46A. According to such a
configuration, a design of the edge of the main body side wall
portion 43 is improved compared to the configuration that the side
edge portion 33C of the interior part side wall portion 33 is
opposite the vehicular interior edge of the main body side wall
portion 43.
As illustrated in FIG. 4, the extended portion 50 has a
semicircular plan view shape. The extended basal portion 46 is
elongated along an upper edge of the main body side wall portion
43, and a part of the extended basal portion 46 extends further in
the extending direction in which the extended basal portion 46
extends from the edge of the main body side wall portion 43 to form
the extended portion 50. The extended basal portion 46 is a basal
portion from which the extended portion 50 extends in the extending
direction.
The extended portion 50 extends from the rear surface 43B of the
main body side wall portion 43 (opposite to the surface 23A of the
side wall portion 23) toward the middle portion (the inner portion)
of the main wall portion 22 (the main surface 22A) or a middle
portion of the door trim 20 as a whole. Specifically, in this
embodiment, the extended portion 50 extends from the main body side
wall portion 43 on the vehicular rear side toward the vehicular
front side. The extended portion extends from the main body side
wall portion on the vehicular front side toward the vehicular rear
side, and the extended portion extends from the main body side wall
portion on the vehicular lower side toward the vehicular upper
side.
As illustrated in FIG. 2, the extended portion 50 is arranged on
the rear surface 32B side of the interior part main wall portion 32
and opposite the interior part main wall portion 32. The interior
part main wall portion 32 includes the mount projection 34. The
mount projection 34 projects from the surface 32B opposite the
extended portion 50 toward the extended portion 50 and is mounted
on the extended portion 50. The extended portion 50 has an
elongated through hole 53 including the insertion through hole
portion 51 through which the mount projection 34 is inserted. The
elongated through hole 53 includes an insertion through hole
portion 51 and a clearance portion 52 that are communicated with
each other.
The insertion through hole portion 51 is formed to correspond to
the mount projection 34 and overlap the mount projection 34 with
respect to the vehicular interior-exterior direction. The insertion
through hole portion 51 has a size and a shape substantially same
as those of an outer shape of the mount projection 34 having a fit
tolerance with respect to the mount projection 34. A mounting
configuration in which the mount projection 34 is mounted on the
extended portion 50 will be described later.
As illustrated in FIG. 2, the elongated through hole 53 including
the insertion through hole 51 and the clearance portion 52 has an
opening size greater than an opening size of the insertion though
hole 51 and greater than a diameter of the mount projection 34. The
elongated throughole 53 is elongated toward an outer periphery of
the main wall portion 22. Therefore, the extended portion 50
relatively moves toward the inner portion (the middle portion) of
the main wall portion 22 (the main surface 22A) with respect to the
mount projection 34 inserted through the insertion through hole 51,
when the main body side wall portion 43 receives a load in the
vehicular interior-exterior direction.
The direction in which the extended portion 50 relatively moves
with respect to the mount projection 34 is same as the direction in
which the extended portion 50 extends from the main body side wall
portion 43, that is, frontward. Specifically, the extended portion
50 moves frontward, that is, toward the middle portion (the inner
portion) of the main wall portion 22 (the main surface 22A, the
door trim 20 as a whole). The extended portion 50 that extends from
the main body side wall portion 43 on the vehicular rear side moves
frontward. The extended portion that extends from the main body
side wall portion 43 on the vehicular front side moves rearward and
the extended portion that extends from the main body side wall
portion 43 on the vehicular lower side moves upward.
As illustrated in FIGS. 2 and 4, the clearance portion 52 is a
through hole formed in the extended portion 50 and communicated
with the insertion through hole 51 to form the elongated through
hole 53.
As illustrated in FIG. 4, the elongated through hole 53 is
elongated toward the outer periphery of the main wall portion 22 or
in the vehicular front-rear direction. Namely, the elongated
through hole 53 includes the insertion through hole portion 51 at a
distal end portion of the extended portion 50 and includes the
clearance portion 52 at a basal end portion of the extended portion
50. Thus, the elongated through hole 53 includes the insertion
through hole 51 on the vehicular front side and includes the
clearance portion 52 on the vehicular rear side. The insertion
through hole 51 extends toward the basal portion of the extended
portion 50 to form the elongated through hole 53. Specifically, in
this embodiment, the insertion through hole 51 extends rearward in
the extended portion 50 to form the elongated through hole 53. The
insertion through hole 51 extends frontward or downward in the
extended portion that extends from the main body side wall portion
43 on the front side or the main body side wall portion 43 on the
lower side, respectively, to form the elongated through hole. In
the elongated portion that extends from the main body side wall
portion 43 on the vehicular front side, the elongated through hole
includes the insertion through hole on the vehicular rear side and
includes the clearance portion on the vehicular front side. In the
elongated portion that extends from the main body side wall portion
43 on the vehicular lower side, the elongated through hole includes
the insertion through hole on the vehicular upper side and includes
the clearance portion on the vehicular lower side. The insertion
through hole 51 does not extend to be away from the main body side
wall portion 43 in the extended portion 50 to form the elongated
through hole 53. Namely, the insertion through hole 51 extends only
toward the outer periphery of the main wall portion 22 (the main
surface 22A) or to be closer to the main body side wall portion 43
to form the elongated through hole 53. The clearance portion 52 is
on the outer periphery side of the main wall portion 22 with
respect to the insertion through hole 51, or the insertion through
hole 51 is on the distal end side of the extended portion 50 with
respect to the clearance portion 52.
The mount projection 34 is mounted on the extended portion 50 so
that the upper board 30 is mounted on the main board 40. Such a
mounting configuration of the upper board 30 and the main board 40
will be described.
The mount projection 34 is inserted through the insertion through
hole 51 that is included on the distal end side of the extended
portion 50 in the elongated through hole 53 with respect to the
clearance portion 52. The mount projection 34 is held against a
hole edge of the insertion through hole 51 included in the
elongated through hole 53. Specifically, the mount projection 34 is
inserted in a portion (the insertion through hole 51) of the
elongated through hole 53 on a distal end side of the elongated
portion 50, that is, on a vehicular front side in the elongated
through hole 53. The screw 36 is fastened into the mount hole of
the mount projection 34 so that vehicular exterior side surfaces of
the reinforcing ribs 37 and a top portion of the screw 36 sandwich
the hole edge of the insertion through hole 51 therebetween and the
mount projection 34 is mounted in the extended portion 50. The
mount projection 34 is held at a C-shaped hole edge portion along
the hole edge of the elongated through hole 53 but not held at a
portion along the hole edge of the elongated through hole 53 on the
outer side of the main wall portion 22 (the vehicular rear side) or
close to the clearance portion 52. The C-shaped hole edge portion
extends from an upper hole edge to a lower hole edge via a front
hole edge. The upper board 30 may be mounted on the main board 40
via the mounting of the mount projection 34 and the extended
portion 50 and further via other mounting portions.
Operations of the door trim 20 of this embodiment will be
described.
As illustrated in FIG. 3, if a side collision occurs in a vehicle,
the inner panel 12 is moved toward a vehicular interior side. The
inner panel 12 that is moved toward a vehicular interior side
directly or indirectly comes in contact with the main body side
wall portion 43 and the main body side wall portion 43 receives a
load directing from the vehicular exterior side toward the
vehicular interior side. The main body side wall portion 43 is
located between the main wall portion 22 (or an occupant who is on
the vehicular interior side with respect to the main surface 22A)
and the inner panel 12.
In this embodiment, as the main body side wall portion 43 receives
the load, the main body side wall portion 43 is deformed and the
extended portion 50 including the clearance portion 52 is
relatively moved toward the middle portion of the main wall portion
22 (the main surface 22A) with respect to the mount projection 34
that is inserted through the insertion through hole 51.
Specifically, the extended portion 50 is moved frontward with
respect to the mount projection 34 so that the mount projection 34
relatively moves within the elongated through hole 53 to the
clearance portion 52.
The extended portion 50 slides on the vehicular exterior surfaces
of the reinforcing ribs 37 and relatively moves with respect to the
mount projection 34. The extended basal portion 46 relatively moves
with respect to the interior part side wall portion 33 so that the
plate surface 46A of the extended basal portion 46 slides on the
end surface of the side edge portion 33C of the interior part side
wall portion 33. Therefore, the side edge portion 33C of the
interior part side wall portion 33 is less likely to overlap the
rear surface 43B of the main body side wall portion 43 and the
sliding of the extended portion 50 is less likely to be hindered by
the contact of the interior part side wall portion 33 and the main
body side wall portion 43.
If the extended portion 50 is relatively moved toward the middle
portion of the main wall portion 22 with respect to the mount
projection 34 according to the deformation of the main body side
wall portion 43, the extended basal portion 46 (a vehicular
interior side end portion) of the main body side wall portion 43 is
moved toward the middle portion of the main wall portion 22. The
vehicular interior side end portion of the main body side wall
portion 43 receives a force directing toward the middle portion of
the main wall portion 22 and the main body side wall portion 43
also receives the load directing in the vehicular interior-exterior
direction (toward the vehicular interior side) that is caused in
the side collision. Therefore, the main body side wall portion 43
is effectively deformed and tilted outwardly as a whole with
respect to the main wall portion 22 so that the door trim 20 is
effectively crashed. According to the configuration of this
embodiment, a groove is not necessary to be formed in the rear
surface 43B of the main body side wall portion 43 to lower strength
of the main body side wall portion 43 and a design of the design
surface 23A of the side wall portion 23 (the main body side wall
portion 43) may not be hindered.
Advantageous effects of this embodiment will be described.
According to this embodiment, the extended portion 50 includes the
clearance portion 52. Therefore, the side wall portion 23 (the main
body side wall portion 43) effectively maintains a design and
rigidity during normal usage thereof. Further, in the collision,
the extended portion 50 is relatively moved toward the middle
portion of the main wall portion 22 with respect to the mount
projection 34 due to the load caused by the collision and
accordingly, the main body side wall portion 43 is easily and
effectively deformed and tilted outwardly with respect to the main
wall portion 22. The main body side wall portion 43 is deformed and
tilted outwardly with respect to the main wall portion 22 so that
the door trim 20 is crashed. Accordingly, the door trim 20
effectively absorbs shock energy generated in the vehicle's
collision. The door trim 20 absorbs the shock energy generated in
the vehicle's collision and damage to the occupant who is on the
vehicular interior side with respect to the main wall portion 22
can be effectively reduced.
In this embodiment, the elongated through hole 53 has a
substantially constant short-side dimension. Therefore, the
extended portion 50 is moved toward the middle portion of the main
wall portion 22 smoothly when the mount projection 34 relatively
slides along the hole edge of the elongated through hole 53. Thus,
the mount projection 34 relatively moves within the elongated hole
53 to the clearance portion 52 without any obstacles. Therefore,
the main body side wall portion 43 is more easily and effectively
deformed and tilted outwardly with respect to the main wall portion
22. For example, the extended portion may not include the elongated
through hole but include only the insertion through hole having a
size corresponding to a size of the mount projection and a hole
edge of the insertion through hole may have a lowered strength (for
example, a decreased thickness). In such a configuration, the hole
edge having the lowered strength may be broken according to the
deformation of the main body side wall portion and the extended
portion may be moved in the vehicle's collision.
In this embodiment, the mount projection 34 is in the insertion
through hole 51 of the elongated through hole 53 and is in the
portion of the elongated through hole 53 closer to the middle
portion of the main wall portion 22 with respect to the clearance
portion 52. The mount projection 34 is held against the hole edge
of the insertion through hole 51 that is on the distal end side of
the extended portion 50 in the elongated through hole 53 with
respect to the clearance portion 52. If the mount projection is not
held against the hole edge of the insertion through hole that is on
the distal end side of the extended portion in the elongated
through hole with respect to the clearance portion, a mounting
force by which the mount projection is mounted on the extended
portion may be lowered. However, in this embodiment, the mount
projection 34 is held against the hole edge of the insertion
through hole 51 and therefore, the mounting force is less likely to
be lowered.
Second Embodiment
Next, a second embodiment of this technology will be described with
reference to FIG. 5. According to this embodiment, a door trim 120
includes a clearance portion 152 that has a shape different from
that of the clearance portion 52 of the first embodiment. In the
following embodiments, configurations, operations, and effects same
as those in the first embodiment will not be described.
An elongated portion 150 includes the clearance portion 152 that is
a slit and communicated with the insertion through hole 51. The
clearance portion 152 has a short side dimension that is quite
smaller than a diameter of the insertion through hole 51.
The clearance portion 152 is formed by cutting away a portion (a
vehicular rear side portion with respect to the insertion through
hole 51) of the extended portion 150, and the portion of the
extended portion 150 is on the outer periphery side of the main
wall portion (the main surface 22A) with respect to the insertion
through hole 51. The clearance portion 152 is the slit extending
from the hole edge of the insertion through hole 51 toward the
outer periphery of the main wall portion 22 (the main surface 22A).
In this embodiment, in the vehicle's collision, the main board 40
is deformed by the shock caused by the collision similarly to the
first embodiment and the extended portion 150 is moved with respect
to the mount projection 34 and the main body side wall portion 43
is deformed and tilted outward. Accordingly, the extended portion
150 is moved frontward with being broken around the clearance
portion 152 that is the slit having a low strength. Thus, the side
wall portion effectively maintains a design and rigidity during
normal usage thereof. Further, in the collision, the main body side
wall portion 43 is deformed and tilted outwardly with respect to
the main wall portion 22 so that the door trim effectively absorbs
shock energy caused by the vehicle's collision.
In this embodiment, the clearance portion 152 is the slit and
therefore, a mounting force by which the mount projection 34 is
mounted on the extended portion 150 is less likely to be
lowered.
Other Embodiments
The present technology is not limited to the description as
described above with reference to the drawings. For example, the
present technology may include following embodiments.
(1) The vehicular interior part is not limited to the door trim but
may be a quarter trim, an instrument panel, or a pillar garnish.
The present technology may be applied to one or some of the
vehicular interior parts.
(2) The clearance portion may be holes (of perforation) formed
independently from the insertion through hole and near the
insertion through hole or may be a thin portion included in a part
of the hole edge of the insertion through hole and having a
thickness smaller than other part of the hole edge.
(3) The mount projection may be fixed to the extended portion with
thermal caulking.
(4) The interior part is not necessarily the upper board and the
trim main body is not necessarily the main board.
(5) The upper board (the interior part) may not include the
interior part side wall portion.
(6) The main board (the trim main body) may not include the main
body main wall portion or/and the extended basal portion.
(7) The trim board may include the upper boar, the main board, and
an ornament. The trim board may include a plurality of board
portions such as a middle board portion and a lower board
portion.
(8) The number and a shape of the extended portion including the
clearance portion may be altered if necessary, and a portion of the
extended portion where the clearance portion is formed may be
altered if necessary.
* * * * *
References